It is not possible to answer the question because thee are no mathematical operators between 7 and 2 or between 91 and 3. Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.
72xy^(3)
2b
33z - 4 - 20z - 5 simplified would be 13z - 1.
A numerical expression is ' 2 + 3' A numerical equation is ' 2 + 3 = 5'.
3b -1
72xy^(3)
4-3 = 1
- - x + 3 = x + 3
3x+3-2x=3 x+3=3 x-0
(3+2i)-(3+2i)
2b
1 over a^5b^3
The expression cannot be simplified.
33z - 4 - 20z - 5 simplified would be 13z - 1.
A numerical expression is ' 2 + 3' A numerical equation is ' 2 + 3 = 5'.
3b -1
This expression is as simple as it can be.Assuming you are multiplying by 3, an alternate way of writing it would be to open the parentheses (using the distributive law). But that won't be any simpler.